WO2001055579A1 - Dispositif de soupape de recirculation des gaz d'echappement - Google Patents

Dispositif de soupape de recirculation des gaz d'echappement Download PDF

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Publication number
WO2001055579A1
WO2001055579A1 PCT/JP2000/000363 JP0000363W WO0155579A1 WO 2001055579 A1 WO2001055579 A1 WO 2001055579A1 JP 0000363 W JP0000363 W JP 0000363W WO 0155579 A1 WO0155579 A1 WO 0155579A1
Authority
WO
WIPO (PCT)
Prior art keywords
circumferential groove
ridge
exhaust gas
valve device
gas recirculation
Prior art date
Application number
PCT/JP2000/000363
Other languages
English (en)
Japanese (ja)
Inventor
Hisashi Yokoyama
Yasuhiko Kato
Takeshi Ikai
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11735615&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2001055579(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP2000/000363 priority Critical patent/WO2001055579A1/fr
Priority to EP00900927A priority patent/EP1164279B1/fr
Priority to KR1020017012023A priority patent/KR20010113853A/ko
Priority to US09/937,360 priority patent/US6672293B1/en
Priority to CN008053979A priority patent/CN1217096C/zh
Priority to DE60026820T priority patent/DE60026820T2/de
Publication of WO2001055579A1 publication Critical patent/WO2001055579A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54—Rotary actuators, e.g. step motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/72—Housings
    • F02M26/73—Housings with means for heating or cooling the EGR valve

Definitions

  • the present invention relates to an exhaust gas recirculation valve device disposed in an exhaust gas recirculation path of an internal combustion engine such as an automobile.
  • FIG. 1 is a sectional view showing the internal structure of a conventional exhaust gas recirculation valve device.
  • a valve housing 1 has an input port 2 communicating with an exhaust system (not shown) of an engine as an internal combustion engine, an output port 3 communicating with an intake system (not shown) of the engine, and an output port 3. It has a passage 4 interposed between the port 3 and the input port 2.
  • the valve seat 5 is press-fitted into the passage 4.
  • Reference numeral 6 denotes a valve rod that passes through the bush 7, and a valve 8 that is in contact with or separates from the valve sheet 5 is attached to the lower end thereof.
  • Reference numeral 9 denotes a holder for preventing the deposit from entering the bush 7
  • reference numeral 10 denotes a spring holder urged upward by the coil spring 11
  • Through holes 12 are formed.
  • the distal end portion 6a of the valve rod 6 is fixed to the through hole 12 by caulking so as to pass therethrough.
  • the knob block 6 and the spring holder 10 are integrated, and the valve 8 attached to the lower part of the nozzle port 6 is fixed to the valve sheet 5 by the coil spring 11.
  • the valve is always biased in the valve closing direction.
  • Reference numeral 13 denotes a valve body and a cooling water passage for cooling a motor and a motor described later.
  • a step as a stay-and-stay assembly for the later-
  • a plastic holder 21 to prevent water from entering into the main body 20 of the stepper. It is fixed by.
  • a motor bush 25 for holding the motor shaft 24 is provided.
  • the lower end of the motor shaft 24 is fixed to the spring holder 26 and the joint 27 by swaging.
  • Reference numeral 28 denotes a spring which is disposed between the module holder 21 and the spring holder 26 and biases the motor shaft 24 in the direction in which the pulp 8 opens.
  • Reference numeral 30 denotes a bobbin, around which a coil 31 is wound, and a yoke 32 and a yoke 33 for providing a magnetic path on the outer periphery are provided.
  • Reference numeral 34 denotes a terminal, which is electrically connected to the coil 31 and forms a connector with the motor housing 35.
  • Reference numeral 36 denotes a plate for magnetically shielding the two coil portions, and 37 a plate for preventing resin from flowing into the inside of the coil portion when the motor housing 35 is externally formed.
  • 40 is a magnet
  • 41 is a magnet holding the magnet 40
  • the inner peripheral part is a screw part 41a to be screwed with the screw part 24a of the motor shaft 24 and the shaft of the motor shaft 24.
  • a mouth with 4 lbs of direction horn is provided.
  • a bearing 42 is attached to both ends of the mouth 41, and a stopper pin 43 is press-fitted into the motor shaft 24.
  • the stepper motor main body 20 has a waterproof holder 21 fixed to a lower portion of the main body 20 to maintain a waterproof structure, and has the mounting screw 44 so that the axis of the valve housing 1 is aligned with the mounting screw 44. Mounted on top.
  • the waterproof structure of the stepper model main body 20 is such that the motor holder 21 is pressed against the lower portion of the stepper model main body 20 via the 0-ring 22. This is achieved by closing the gap between the stepper overnight main body 20 and the motor holder 21 with a tightening screw 23 to the extent that the first ring 22 is crushed.
  • the unit cost of the 0-ring 22 is relatively high, and in order to reduce the cost of the entire exhaust gas recirculation valve device, the stepper motor main body 20 must be used without using the 0-ring 22. It is necessary to maintain the waterproof structure.
  • the present invention has been made to solve the above-described problems.
  • the waterproof structure of the stepper motor main body 20 is not used without using the 0-ring 22. It is an object to obtain an exhaust gas recirculation valve device that can be maintained. Disclosure of the invention
  • An exhaust gas recirculation valve device includes: a motor main body having a motor for controlling the opening and closing directions of a valve via a valve rod; and a motor holder for closing a lower opening of the motor main body.
  • a circumferential groove is formed in one of the lower opening of the motor body and the upper part of the motor holder, and a convex ridge is formed on the other to fit into the circumferential groove.
  • a liquid sealant is applied between the top of the ridge and the bottom of the circumferential groove facing the top.
  • the present invention provides a circumferential groove having a bottom portion and an innermost peripheral portion adjacent to the bottom portion, and a convex ridge having a top portion and an innermost peripheral portion adjacent to the top portion, wherein the innermost peripheral groove is In a state where the innermost peripheral portion of the ridge is fitted to the peripheral portion, the top of the ridge is brought into contact with the bottom of the circumferential groove via a liquid sealant.
  • the liquid sealant interposed between the top of the ridge and the bottom of the circumferential groove does not flow into the motor body due to the fitting portion between the ridge and the ridge, and the liquid seal does not flow. It is possible to prevent the occurrence of malfunction of the motor due to the agent.
  • the present invention since a part of the outermost peripheral portion of the circumferential groove is fixed to the outermost peripheral portion of the ridge by caulking, the excess amount of the liquid sealant is ensured and the mower body and the mower holder are secured. Can be fixed, and the waterproof structure of the motor body can be reliably maintained. Further, the present invention provides a clearance between the outermost peripheral portion of the circumferential groove and the outermost peripheral portion of the ridge opposed to the outermost peripheral portion, the innermost peripheral portion of the circumferential groove and the innermost peripheral portion of the ridge. It is designed to be larger than the clearance between the two. Thereby, a gap for storing the surplus liquid sealant can be formed between the circumferential groove and the outermost peripheral portion of each of the ridges.
  • a notch portion for storing an excess of the liquid sealant is formed at the outermost peripheral portion of the ridge. Thereby, the excess of the liquid sealant can be effectively stored in the cutout portion.
  • the clearance between the bottom of the circumferential groove and the top of the ridge facing the bottom is defined as the clearance between the innermost circumference of the circumferential groove and the innermost circumference of the ridge. It is designed to be larger. Thereby, a gap for storing an excess of the liquid sealant can be formed between the circumferential groove and the outermost peripheral portion of each of the ridges.
  • a concave portion for storing an excess of the liquid sealant is formed at a bottom portion on the outermost peripheral side of the circumferential groove.
  • FIG. 1 is a sectional view showing the internal structure of a conventional exhaust gas recirculation valve device.
  • FIG. 2 is a sectional view showing the internal structure of the exhaust gas recirculation valve device according to Embodiment 1 of the present invention.
  • FIG. 3 is an enlarged sectional view showing a waterproof portion A in the exhaust gas recirculation valve device shown in FIG.
  • FIG. 4 is a view taken along line BB of FIG.
  • FIG. 5 is a cross-sectional view taken along the line C-C of FIG.
  • FIG. 6 is a cross-sectional view showing a waterproof part A in an exhaust gas recirculation valve device according to Embodiment 2 of the present invention.
  • FIG. 7 is a sectional view showing a waterproof part A in an exhaust gas recirculation valve device according to Embodiment 3 of the present invention.
  • FIG. 8 is a sectional view showing an internal structure of an exhaust gas recirculation valve device according to Embodiment 4 of the present invention.
  • FIG. 2 is a cross-sectional view showing the internal structure of the exhaust gas recirculation pulp device according to Embodiment 1 of the present invention
  • FIG. 3 is an enlarged view of a waterproof portion A in the exhaust gas recirculation valve device shown in FIG.
  • FIG. 4 is a sectional view taken along line BB of FIG. 2
  • FIG. 5 is a sectional view taken along line CC of FIG.
  • the same components as those of the conventional exhaust gas recirculation valve device shown in FIG. 1 are denoted by the same reference numerals, and the description of those portions will be omitted.
  • reference numeral 45 denotes a bearing mounted on the upper part of the roller 41
  • reference numeral 46 denotes a bearing of the bearing 45.
  • a waterproof portion A shown in FIG. 2 has a circumferential groove 50 formed in a lower portion of the motor housing 35 so as to be concave in a rectangular cross section, A convex ridge 60 having a rectangular cross section formed on the upper portion of the module holder 21 so as to fit into the peripheral groove 50, an upper surface 61 serving as the top of the convex ridge 60, and the circumferential groove 5. And a liquid sealing agent layer 70 interposed between the bottom surface 50a which is the bottom of the liquid sealing agent. 50 b and 50 c indicate the inner and outer peripheral surfaces of the circumferential groove 50. As shown in FIGS.
  • an outer groove 51 is formed concentrically with the circumferential groove 50 outside the circumferential groove 50, and the outer groove 51 has substantially equal intervals.
  • a plurality of (4 in this example) force-screwing holes 52 are formed at positions spaced apart from each other.
  • the wall near the circumferential groove 50 and the ridge 60 of the force-crimp hole 52 is deformed in a direction to cover a part of the ridge 60 by thermal or mechanical caulking. The caulking firmly fixes the motor holder 21 to the lower part of the motor housing 35.
  • reference numeral 53 denotes a force-screwing portion.
  • the liquid sealant forming the liquid sealant layer 70 is called a liquid packing or a liquid gasket, and has a property of being applied in a liquid state and solidifying by being exposed to air or the like after the application.
  • a silicone sealant can be suitably used.
  • the liquid sealant is uniformly applied to one or both of the bottom surface 50a of the circumferential groove 50 and the upper surface 61 of the ridge 60 by a predetermined amount from the tip of the robot manipulator. It is preferably applied.
  • This liquid sealing agent can be adapted to the irregularities even if the sealing surface such as the bottom surface 50a of the circumferential groove 50 or the upper surface 61 of the ridge 60 is rough due to irregularities. As a result, the waterproof structure can be maintained flexibly according to the surface shape of the sealing surface.
  • the __ring 22 is used to maintain the waterproof structure, and the 0-ring 22 is crushed. In this state, a certain amount of space was required in the height direction, but according to the first embodiment, if there is a slight clearance, sealing can be performed with the liquid sealing agent layer 70. The size of the entire device can be reduced.
  • liquid sealing agent layer 70 is very thin as compared with the above-mentioned 0-ring 22 and can conform to the shape of the above-mentioned sealing surface,
  • the outer shape of the ridge 60 can be formed corresponding to the inner shape of the circumferential groove 50, and the simplification and design of the mold shape of the motor housing 35 and the motor holder 21 can be achieved. Work can also be facilitated.
  • the circumferential groove is formed on the motor housing 35 side, and the ridge is formed on the motor holder 21 side.
  • the circumferential groove is formed on the motor holder 21 side.
  • the ridge may be formed on the housing 35 side.
  • the liquid sealant used in the first embodiment is a liquid having fluidity at the time of application, but has a property of solidifying when exposed to air or the like. If it enters the rotating part in 5, the motor drive may be hindered.
  • Embodiments 2 and 3 below relate to improvements that prevent such inconveniences from occurring.
  • FIG. 6 is a sectional view showing a waterproof portion A in an exhaust gas recirculation valve device according to Embodiment 2 of the present invention.
  • the feature of the second embodiment is that the inner peripheral surface 5Ob which is the inner peripheral portion of the circumferential groove 50 of the motor housing 35 has an inner peripheral portion of the ridge 60 of the motor holder 21.
  • the inner peripheral surface 62 is fitted, and the bottom surface 50a adjacent to the inner peripheral surface 50b of the circumferential groove 50 and the upper surface 61 adjacent to the inner peripheral surface 62 of the ridge 60 are connected.
  • the liquid sealant layer 70 is interposed between the outer peripheral surface 50 c, which is the outermost peripheral portion of the circumferential groove 50, and the clearance between the outer peripheral surface 63, which is the outermost peripheral portion of the ridge 60, as described above.
  • the clearance between the inner peripheral surface 5 Ob of the circumferential groove 50 and the inner peripheral surface 62 of the ridge 60 is set larger than the clearance between the inner peripheral surface 5 Ob and the inner peripheral surface 62 of the protruding ridge 60. This is at the point provided on the bottom surface 50a on the outermost peripheral side of the groove 50.
  • the inner peripheral portion of the circumferential groove 50 of the motor housing 35 By fitting the inner peripheral surface 62, which is the inner peripheral portion of the ridge 60 of the motor holder 21, to the inner peripheral surface 5Ob, the clearance between the inner peripheral surfaces is almost zero.
  • the outer peripheral surface 50 which is the outermost peripheral part of the circumferential groove 50, is prevented.
  • the liquid sealant layer 70 is formed by making the clearance between c and the outer peripheral surface 63, which is the outermost peripheral portion of the ridge 60, larger than the inner clearance, and providing a concave portion 54. An excess amount of the liquid sealant can be stored, and the liquid sealant can escape to the outside of the motor housing 35 to reliably prevent the liquid sealant from entering.
  • the upper surface 61 of the ridge 60 is configured to be parallel to the bottom surface 50a of the circumferential groove 50.
  • the distance from the bottom surface 50 a of the circumferential groove 50 to the top surface 61 gradually increases from the inner peripheral surface 62 side to the outer peripheral surface 63 side.
  • the clearance between the top surface 61 and the bottom surface 50a may be tapered.
  • FIG. 7 is a sectional view showing a waterproof part A in an exhaust gas recirculation valve device according to Embodiment 3 of the present invention.
  • the feature of the third embodiment resides in that a cutout portion 64 formed by partially cutting out the upper surface 61 and the outer peripheral surface 63 of the ridge 60 is provided.
  • the notch 64 secures a space between the circumferential groove 50 and the excess liquid sealant. Is what you do. Also, the provision of the notch portion 64 allows the protrusion 60 to be formed in the circumferential groove 50 as compared with, for example, the configuration shown in FIG. 3 in which the notch portion 64 is not formed in the protrusion 60.
  • FIG. 8 is a sectional view showing an internal structure of an exhaust gas recirculation valve device according to Embodiment 4 of the present invention.
  • Embodiment 1, Embodiment 2 and Embodiment 3 use the stepper motor as the motor inside the motor body 20, this embodiment 4 uses the DC motor.
  • the feature is that it is.
  • the same components as those of the conventional exhaust gas recirculation valve device shown in FIG. 1 and those of the exhaust gas recirculation valve device shown in FIG. 2 among the components of the fourth embodiment are the same. Reference numerals are used, and the description of those parts is omitted.
  • reference numeral 80 denotes a commutator
  • 81 denotes an iron core
  • 82 denotes a field magnet.
  • the fourth embodiment by using the above-mentioned liquid sealant for the waterproof structure of the main body 20, it is not necessary to use the conventional single ring 22, and the number of parts is reduced.
  • the manufacturing cost can be reduced by reducing the number of components, and the motor housing 35 and the motor holder 2 Since the approach distance to the exhaust gas recirculation valve device can be reduced, the size of the entire exhaust gas recirculation valve device can be reduced.
  • Embodiment 4 as shown in FIGS. 3, 6, and 7, the escape route for the excess amount of the liquid sealant is located at a position away from the intrusion route into the motor housing 35.
  • the waterproof structure of the motor body 20 can be reliably maintained.
  • the exhaust gas recirculation valve device according to the present invention does not require the use of a 0-ring having a high unit cost, unlike the related art, the manufacturing cost of the entire exhaust gas recirculation valve device is reduced.
  • the waterproof structure of the motor body can be reliably maintained without screwing.
  • the liquid sealant that develops between the circumferential groove between the motor body and the motor holder and the ridge fitted into the circumferential groove, Excessive entry into the motor body can be reliably prevented.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

On décrit un dispositif de soupape de recirculation des gaz d'échappement qui comprend un corps principal (20) de moteur qui régule de manière commandée une soupape (8) dans les sens d'ouverture et de fermeture par l'intermédiaire d'une tige (6) de soupape et un support (21) de moteur fermant une ouverture inférieure du corps principal (20) de moteur, dans lequel une rainure circonférentielle (50) est formée dans une des ouvertures inférieures du corps principal (20) de moteur et la partie supérieure du support (21) de moteur, une bande saillante (60) logée dans la rainure circonférentielle (50) étant formée sur l'autre, et une couche (70) de matériau d'étanchéité liquide qui est prévue entre une surface supérieure (61) faisant office de partie supérieure de la bande saillante (60) et une surface inférieure (50a) faisant office de partie inférieure de la rainure circonférentielle (50) opposée à ladite surface supérieure (61).
PCT/JP2000/000363 2000-01-25 2000-01-25 Dispositif de soupape de recirculation des gaz d'echappement WO2001055579A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/JP2000/000363 WO2001055579A1 (fr) 2000-01-25 2000-01-25 Dispositif de soupape de recirculation des gaz d'echappement
EP00900927A EP1164279B1 (fr) 2000-01-25 2000-01-25 Dispositif de soupape de recirculation des gaz d'echappement
KR1020017012023A KR20010113853A (ko) 2000-01-25 2000-01-25 배기가스 재순환 밸브장치
US09/937,360 US6672293B1 (en) 2000-01-25 2000-01-25 Exhaust gas recirculating valve device
CN008053979A CN1217096C (zh) 2000-01-25 2000-01-25 废气再循环阀装置
DE60026820T DE60026820T2 (de) 2000-01-25 2000-01-25 Ventil für abgasrückführung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/000363 WO2001055579A1 (fr) 2000-01-25 2000-01-25 Dispositif de soupape de recirculation des gaz d'echappement

Publications (1)

Publication Number Publication Date
WO2001055579A1 true WO2001055579A1 (fr) 2001-08-02

Family

ID=11735615

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/000363 WO2001055579A1 (fr) 2000-01-25 2000-01-25 Dispositif de soupape de recirculation des gaz d'echappement

Country Status (6)

Country Link
US (1) US6672293B1 (fr)
EP (1) EP1164279B1 (fr)
KR (1) KR20010113853A (fr)
CN (1) CN1217096C (fr)
DE (1) DE60026820T2 (fr)
WO (1) WO2001055579A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
JP2019009958A (ja) * 2017-06-28 2019-01-17 日立オートモティブシステムズ株式会社 電動駆動装置及び電動パワーステアリング装置

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Publication number Priority date Publication date Assignee Title
JP4531359B2 (ja) * 2003-07-18 2010-08-25 三菱電機株式会社 モータ
WO2006086236A1 (fr) * 2005-02-08 2006-08-17 Parker-Hannifin Corporation Ensemble vanne commande par un moteur electrique presentant un systeme pour l'etancheite du stator
ITMI20050407A1 (it) * 2005-03-14 2006-09-15 Dellorto Spa Valvola per il ricircolo dei gas di scarico in motori a combustione interna con azionamento a motore elettrico e rocchetto-cremagliera
WO2007018528A1 (fr) * 2005-08-02 2007-02-15 Honeywell International Inc. Dispositif de tuyere a geometrie variable
JP5717556B2 (ja) * 2011-06-22 2015-05-13 愛三工業株式会社 Ｅｇｒバルブ
JP5549696B2 (ja) * 2012-03-02 2014-07-16 株式会社デンソー Ｅｇｒ装置
DE102012102646A1 (de) * 2012-03-27 2013-10-02 Ebm-Papst Landshut Gmbh Gasregelventil
JP6143651B2 (ja) * 2013-11-14 2017-06-07 愛三工業株式会社 排気還流バルブ
WO2016067465A1 (fr) * 2014-10-31 2016-05-06 三菱電機株式会社 Soupape de régulation de fluide

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JPS5792042U (fr) * 1980-11-27 1982-06-07
US4782811A (en) * 1987-03-30 1988-11-08 Robertshaw Controls Company Exhaust gas recirculation valve construction and method of making the same
JPH05106520A (ja) * 1990-12-28 1993-04-27 Aisan Ind Co Ltd 流量制御弁
JPH0681966A (ja) * 1992-09-03 1994-03-22 Aisan Ind Co Ltd 流量制御弁
JPH084932A (ja) * 1994-06-17 1996-01-12 Mitsubishi Electric Corp 電動式流量制御弁
JPH0844432A (ja) * 1994-08-02 1996-02-16 Nippondenso Co Ltd 流量制御弁
JPH0868324A (ja) * 1994-08-30 1996-03-12 Mitsubishi Motors Corp ウォータポンプのシール構造
US5669364A (en) * 1996-11-21 1997-09-23 Siemens Electric Limited Exhaust gas recirculation valve installation for a molded intake manifold

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JP2936031B2 (ja) 1992-07-01 1999-08-23 富士写真フイルム株式会社 レンズ付きフイルムユニット
JP2978677B2 (ja) 1993-07-07 1999-11-15 三菱電機エンジニアリング株式会社 電動制御弁装置
WO1996020338A1 (fr) * 1994-12-26 1996-07-04 Hitachi, Ltd. Commande de debit pour moteur a combustion interne
JP3204043B2 (ja) * 1995-06-22 2001-09-04 日産自動車株式会社 流量制御バルブ
WO1999057428A1 (fr) 1998-05-06 1999-11-11 Mitsubishi Denki Kabushiki Kaisha Dispositif de montage d'une soupape de recirculation des gaz d'echappement
IT1304100B1 (it) * 1998-12-14 2001-03-07 Claber Spa Dispositivo elettronico di controllo con protezione automaticacontro la condizione di batteria scarica per elettrovalvola di tipo
EP1156246B1 (fr) * 1999-12-24 2004-09-22 Mitsubishi Denki Kabushiki Kaisha Dispositif de soupape de recirculation des gaz d'echappement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792042U (fr) * 1980-11-27 1982-06-07
US4782811A (en) * 1987-03-30 1988-11-08 Robertshaw Controls Company Exhaust gas recirculation valve construction and method of making the same
JPH05106520A (ja) * 1990-12-28 1993-04-27 Aisan Ind Co Ltd 流量制御弁
JPH0681966A (ja) * 1992-09-03 1994-03-22 Aisan Ind Co Ltd 流量制御弁
JPH084932A (ja) * 1994-06-17 1996-01-12 Mitsubishi Electric Corp 電動式流量制御弁
JPH0844432A (ja) * 1994-08-02 1996-02-16 Nippondenso Co Ltd 流量制御弁
JPH0868324A (ja) * 1994-08-30 1996-03-12 Mitsubishi Motors Corp ウォータポンプのシール構造
US5669364A (en) * 1996-11-21 1997-09-23 Siemens Electric Limited Exhaust gas recirculation valve installation for a molded intake manifold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019009958A (ja) * 2017-06-28 2019-01-17 日立オートモティブシステムズ株式会社 電動駆動装置及び電動パワーステアリング装置

Also Published As

Publication number Publication date
US6672293B1 (en) 2004-01-06
KR20010113853A (ko) 2001-12-28
EP1164279A4 (fr) 2002-09-25
DE60026820T2 (de) 2007-01-18
DE60026820D1 (de) 2006-05-11
CN1217096C (zh) 2005-08-31
CN1344351A (zh) 2002-04-10
EP1164279A1 (fr) 2001-12-19
EP1164279B1 (fr) 2006-03-22

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